Shared space for communicating information

ABSTRACT

Embodiments provide a shared space for communicating information. In an embodiment a number of users associated with a computing environment can use a shared space to communicate information with one another. Each computing device of the computing environment can include a shared space application. The shared space application includes a number of interactive tools that can be used to persist various communications between associated computing devices of a computing environment.

RELATED CASE

This application is a continuation of U.S. patent application Ser. No.11/599,599, filed Nov. 13, 2006 and entitled “Shared Space forCommunicating Information,” which is hereby incorporated by reference.

BACKGROUND

People try to communicate and stay connected using a number ofcommunication methods, such as: postal mail, phones, digital photos,whiteboards, e-mail, and instant messaging (IM) applications. However,each technique has associated limitations and can result in anunsatisfactory experience for the user. For example, instant messages,networked digital picture frames, and e-mail can be untimely andconstrain the amount of information that can be communicated. Somecommunication methods, like phone and IM communication methods, likeemail, and postal mail communications allow for delayed responses, butare typically less intrusive since a party can wait to respond. However,passive methods can be impersonal and deficient in emotionalexpressiveness because they impose a turn takingstatement/reply/statement/reply communication structure (e.g. e-mail andinstant messaging).

Other communication methods lack fidelity, variety of expressiveness, orare limited to providing information in temporary sessions (e.g. instantmessaging, virtual whiteboards). Once the session ends, the informationis lost. For example, whiteboards are often used as a medium tocommunicate spontaneous handwritten ideas and concepts. However,information displayed on the whiteboard is not ideal for remoteinteraction and collaboration. It can be difficult for remote users toread and focus upon relevant portions of a whiteboard, due in part tothe limitations associated with video teleconferencing equipment. Forexample, ink strokes written on a whiteboard can be hard to see, andcannot be erased or edited by remote users. Thus, real-time multi-userphysical whiteboard collaborated is limited and generally anunsatisfactory experience for the remote participant.

SUMMARY

This summary is provided to introduce a selection of concepts in asimplified form that are further described below in the DetailedDescription. This summary is not intended to identify key features oressential features of the claimed subject matter, nor is it intended asan aid in determining the scope of the claimed subject matter.

Embodiments provide a “shared space” for communicating information. Theshared space can be configured to allow a number of users to communicateby using the shared space. In an embodiment, a shared space applicationis configured to provide a persistent space that can be shared forinteraction by two or more users. A user can have a number of separatespaces to share and communicate with other individuals and/or groups. Invarious embodiments, the shared space can be interacted with andpopulated using a flexible aggregation of simple communication tools forsharing and communicating a variety of information. The communicationtools and the shared and communicating a variety of information. Thecommunication tools and the shared space provide users with a persistentmeans to naturally and conveniently interact and communicate.

These and other features and advantages will be apparent from a readingof the following detailed description and a review of the associateddrawings. It is to be understood that both the foregoing generaldescription and the following detailed description are explanatory onlyand are not restrictive of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of a computing environment.

FIG. 2 is a block diagram of a computing environment.

FIG. 3 is a block diagram of a shared space architecture.

FIG. 4 is a flowchart illustrating using a shared space.

FIGS. 5A-5K illustrate a user interface for interacting with a sharedspace.

FIG. 6 is a block diagram illustrating a computing environment forimplementation of various embodiments described herein.

DETAILED DESCRIPTION

Embodiments provide a shared spaced, wherein a number of users can usethe shared space to communicate information. The shared space can beconfigured to allow a number of users to communicate by using the sharedspace. In an embodiment a shared space application is configured toprovide a persistent space that can be shared and used by two or moreusers to communicate using various tools. A display of a computingdevice can be used to present a shared space to users who are using theshared space application to share such a space. The users can use thevarious tools provided by the shared space application to interact withthe shared space in real-time or at their convenience.

In one embodiment, a plurality of shared spaces can be presented on oneor more displays, thereby allowing a user to concurrently interact withvarious individuals and/or groups. That is, a user can have separatespaces to keep in touch and communicated with different individualsand/or groups. In various embodiments, the shared space can be populatedusing a flexible aggregation of simple communication tools that allowfor the sharing of a variety of information. For example, thecommunication tools can be used by a user to populate a shared spacewith imagery, text, audio, handwritten drawings and words (e.g. digitalink), and/or other data. The communication tools are configured toafford natural and convenient communication and interaction.

In an embodiment, a shared space is persistent and remains available toan associated participant at all times, even when a participant is notusing the space and/or signed in (e.g. offline). A user can invite oneor more participants to share one or more spaces. A participant of ashared space can add to, delete from, and/or otherwise modify the space.Thereafter, all participants of the shared space see or will see thesame result of the interaction. The shared space application isconfigured to allow a participant to save content to a privatescrapbook, since the nature of the shared space can be highlytransitory. Moreover, the shared space application is configured to useshared and private data, but is not so limited. In one embodiment, theshared space application is further configured to enable a “liveconnection.” The live connection enables a number of participants toengage in live audio and/or video communication using the shared spaceapplication.

FIG. 1 is a block diagram of a computing environment 100, under anembodiment. The computing environment 100 can be described as a networkof components wherein the associated components are communicativelycoupled in such a manner to provide an operational functionality. Anumber of computing devices 102-106 are in communication with oneanother to provide a network or computing devices. The number ifcomputing devices 102-106 also can be in communication with a servingcomputing device 107. Each computing device 102-107 includes networkingand security components configured to provide communicationfunctionality between the computing devices 102-107. The computingdevices 102-106 can include desktop computers, laptop computers, tabletcomputers, handheld devices, and other communication devices.

As shown in FIG. 1, each computing device 102-106 includes a sharedspace application 108-112, described further below. The servingcomputing device 107 includes a space manager component 114, but is notso limited. The space manager component 114 can be configured andoperated to manage aspects of one or more shared spaces, but is not solimited. For example, the space manager component 114 can maintain aread-write master data file that is associated with a shared space. Inan embodiment, each shared space application 108-112 and the spacemanager component 114 comprise software applications that execute inconjunction with processors of computing devices 102-107. As describedbelow, each shared space application 108-112 is configured to provide apersistent space to a number of users that are associated with theshared space. In order to streamline the discussion below, the computingdevice 102 and associated shared space application 108 are referred towhen describing the functionality and use of the shared spaceapplication.

As described below, a user can use the computing device 102 andassociated shared space application 108 to communicate and interact withother users of a shared space. The shared space can be described as apersistent canvas or interactive window that can be used by two or moreusers to communicate in a variety of ways. That is, the shared spaceapplication 108 is configured to persist user interactions, includingvarious expressions, for an associated shared space. Correspondingly,the user interactions are seen by all users associated with the sharedspace, regardless of their physical location. In various embodiments,anything that is created, placed, or otherwise located (ink, videofiles, audio files, text, pictures, etc.) in a shared space is persistedin the shared space until deleted or otherwise modified.

A user can use the shared space application 108 to interact with anumber of separate spaces and/or users. For example, a user can use theshared space application 108 to create a number of shared spaces whichenable the user to keep in touch with various individuals and/or groups.A user's interaction with a shared space is termed an expression. Theshared space application 108 is configured to persist an expression inthe shared space until the expression is deleted or otherwise modifiedby a user associated with the shared space. For example, if a user drawsa picture or posts a photo in a shared space, the items remain in theshared space, even if they are covered by other items.

The shared space application 108 can be installed on the computingdevice 102. For example, the shared space application 108 can beinstalled as part of an operating system (OS) installation process. Asdescribed above, a user can use the shared space application 108 tocommunicate with one or more users or participants of a shared space.Additionally, the communication of a shared space can be provided to anumber of associated computing devices. The communication of a sharedspace to a plurality of computing devices makes collaboration andinteraction a pleasurable experience, even for users in remotelocations. Thus, the shared space application 108 provides a convenientmedium for communicative interaction to businesses, families, friendsand others.

For example, the communication of a shared space can be provided to anumber of ultra-mobile computing devices and associated userscommunicating over a network, such as the Internet. In one embodiment,the communication of the shared space is provided over the Internetusing an online file storage service. In another embodiment, thecommunication of the shared space is provided to a number of computingdevices using a peer-to-peer service, such as a peer-to-peersynchronization service for example.

The communication of the shared space can be provided to the computingdevices 102-107 of a computing network, such as wireless local areanetwork (WLAN), local area network (LAN), wide-area network (WAN),combinations thereof, and/or some other type of computing and/orcommunication network. In one embodiment, the computing environment 100is a distributed computer network that allows one or more computingdevices, communication devices, databases, etc., to communicateaccording to a desired implementation.

The components of the computing environment 100 can be communicativelycoupled to one another using wired, wireless, combinations or wired andwireless, and other communication techniques. The communication of ashared space can also include communications of various communicationmethods. Other embodiments that communicate a shared space includefile/folder sharing methodologies and/or synchronization schemes. Forexample, a file/folder sharing program such as FOLDERSHARE can be usedto communicate a shared space and the associated displayed content.

In an embodiment, a shared space application 108 is configured tooperate on, persist, and/or display the content(s) of a master file,such as a read-only copy of a master file for example. The master filecan be updated when the shared space is modified or otherwise changed.That is, the shared space application uses the master file to track andmaintain changes to the shared space. In one embodiment, a master fileis associated with each shared space. Each computing device 102-106 canuse the master file to display the content(s) of the shared space,including recent changes and modifications to the shared space.

In one embodiment, each computing device 102-106 is associated with apeer-to-peer network and uses a master file that is associated with ashared space. When a computing device 102-106 associated with a sharedspace is connected and online, the master data file changes state from aread-only state to a read-write state. Thereafter, the local master datafiles are synchronized in read-time as additions, deletions, and otherchanges are made to the associated shared space. When a computing devicedisconnects (e.g. the user is offline), the local master data file isreconfigured to read-only. Thereafter, the next time a user logs in to ashared space and the shared space application 108 connects to theread-write master file, the read-write master file is copied over (e.g.replaces) the local read-only master file so that the master file isupdated with all the additions and changes that occurred while the userwas disconnected.

Accordingly, as updates to the shared space occur, each master file isupdated and/or synchronized with the other associated master files forthe shared space. Thus, the shared space application 108 operates toensure that users who are currently in communication (e.g. connectedand/or signed on) with one another see the same information. The sharedspace application 108 is configured to modify the master file andcommunication of the shared space is provided by using the master filewhen a user is in communication with another participant and associatedmaster file. For example, the communication of the shared space can beprovided when a user has network connectivity to an associated masterfile through an online storage service and/or directly to otherassociated computing devices (e.g. peer-to-peer).

As described above, the shared space application 108 can be configuredto maintain a read-only copy of a latest version the master file inlocal storage of an associated computing device. If a user is offline,the shared space application 108 does not provide access to theread-only master file. However, the user can view the read-only copy ofthe master file, but cannot make changes to the master file. Asdescribed below, the user can also save one or more expressions storedin the read-only master file to a scrapbook. If another user changes themaster file associated with a shared space while a user is offline, theoffline user will not see the changes until they log back in to theassociated shared space. Thus, a user must be logged into a shared spaceso that the shared space application 108 can access and use theread-write master file to update the shared space with any changes sincethe user has been offline.

As an example, suppose user A and user B have a shared space. User A isonline. When user A opens the shared space, the shared space applicationaccesses the master file. As one example, the shared space applicationcan access the master file from a virtual hard drive. Then, user A addsa picture to the shared space. The shared space application adds thepicture to the master file and the local read-only file of user A. UserB is offline, and opens the shared space, which shows that user B isoffline. User B cannot see the picture that user A just added.Thereafter, user B goes online, such as be connecting to the Internet.Once user B goes online, the shared space application accesses and readsthe master file, and updates the local read-only file on user B'smachine. Now user B sees the picture added by user A to the sharesspace.

In one embodiment, the read-write master file is stored and maintainedon the serving computing device 107. Thus, a user associated with ashared space needs to have network connectivity and be online to makechanges to the shared space and associated read-write master file. Inother embodiments, the master file can be stored and maintained using aweb service, on a peer machine, and/or on the user's computing device.The master file can then be copied to all participants associated with ashared space when they are communicating. In an alterative embodiment, auser can make additions and/or changes to their local file at any time.Thereafter, when each participant re-connects to a shared space (e.g.logs in) or to another participant (e.g. peer-to-peer), asynchronization operates to aggregate all off-line changes made by eachparticipant so that each participant “sees” the same space.

FIG. 2 is a block diagram of a computing environment 200, under anembodiment. The computing environment 200 includes a computing device202 in communication with a serving computing device 204. The componentsof the computing environment 200 can be communicatively coupled to oneanother using wired, wireless, combinations of wired and wireless, andother communication and networking techniques. While one computingdevice 202 and one serving computing device 204 are shown, otherembodiments can include a plurality of such computing and servingcomputing devices. In one embodiment, a shared space can be created anddefined between at least two users using two computing devices, such asultra-mobile computing devices for example.

As shown is FIG. 2, the computing device 202 includes a shared spaceapplication 206. The shared space application 206 is configured toprovide a persistent space that can be shared for interaction by anumber of users. According to this embodiment, the shared spaceapplication 206 includes a number of associated components that are usedto maintain a space. The shared space application 206 includes, but isnot limited to: a launch component 208; an authenticating component 210;a contacts component 212; a canvas dispatch component 214; a mediarecorder component 216; a frame capture component 218; ahistory/scrapbook manager component 220; a space manager component 222;a content object creator component 224; data synchronizer component 226;a file creator component 228; a response/request handler component 230;and, a space canvas component 232. In alternative embodiments, thefunctionality and operation of the various components can be combined toprovide fewer components and/or a desired implementation.

The launch component 208 can be configured as a user interlace andoperated to provide user authentication, space selection, and/orparticipant selection. The authenticating component 210 can beconfigured and operated as an authenticating service, such as a PASSPORTservice for example. The contacts component 212 can be configured andoperated to locate and/or maintain a user contact list. For example, thecontacts component 212 can be configured to connect to a MSN service toexpose a user's MSN contact list as participants for shared spaces. Thecanvas dispatch component 214 can be configured and operated to create anew space canvas and display objects in a space. The media recordercomponent 216 can be configured and operated to record audio, images,video, and other objects/expressions. For example the media recordercomponent 216 can use a local camera, microphone, and/or othercomponents to record images, audio and video as expressions in a space.

With continuing reference to FIG. 2, the frame capture component 218 canbe configured and operated to capture “snapshot” images of a space forthe history and/or scrapbook. The history/scrapbook manager component230 can be configured and operated to manage a chronological collectionof “snapshots” of a space and to provide the user a mechanism to reviewand/or store selected expressions in a private local repository referredto as a scrapbook. The history/scrapbook manager component 220 canrecord every event occurring in a space. Accordingly, a user does nothave to continually use save operations, which allow for a more informalinteraction with the space. The space manager component 222 can beconfigured and operated to manage aspects of a space. For example, thespace manager component 222 can be configured and operated to manage alocal copy of a master file. The content object creator component 224can be configured and operated to manage objects and other expressionsin a space. For example, the content object creator component 224 can beconfigured and operated to manage images, ink, text, and/or other userexpressions.

The data synchronizer compound 226 can be configured and operated tosynchronize data files between a user computing device 202 and a servingcomputing device 204. For example, the data synchronizer component 226can be configured and operated to synchronize master data files betweenthe user computing device 202 and serving computing device. The filecreator component 228 can be configured and operated to manage sharedspace data file, including, but not limited to: creating, opening, andsaving shared space data files. The response/request handler component230 can be configured and operated to manage communication betweencomputing devices. For example, the response/request handler component230 can be configured and operated to manage communication between thecomputing device 202 and the serving computing device 204. The spacecanvas component 232 can be configured and operated as a user interfaceto enable user interaction with a space.

In accordance with this embodiment, the serving computing device 204includes a number of shared space components. As shown in FIG. 2, theserving computing device 204 includes, but is not limited to: a datasynchronizer component 234; a response/request handler component 236;and, a space manager component 238. The data synchronizer component 234can be configured and operated to synchronize data files between theserving computing device 202 and one or more user computing devices. Forexample, data synchronizer component 234 can be configured and operatedto synchronize master data files between the serving computing device204 and user computing device 202. The response/request handlercomponent 236 can be configured and operated to manage communicationbetween the serving computing device and one or more other computingdevices, including other serving computing devices. The space managercomponent 238 can be configured and operated to manage aspects of aspace. For example, the space manager component 238 can be configuredand operated to manage a read-write master copy of a master file. Otherembodiments are available.

The shared space application 206 is configured to use and providevarious objects in a shared space. In one embodiment, the shared spaceapplication 206 uses and provides: participant indicators (e.g. icon,digital image, etc.) that represent other users who are sharing a space;expressions in the space (e.g. ink, text, photos, video, liveconnections, etc.); and, a number of interactive tools. For example, anicon (e.g. default person/group icon) or a digital image can be used torepresent an individual or group that is sharing a space. A digitalimage or photo can be imported or dropped using the contacts component212 along with a name associated with individual or group name. Thecontacts component 212 can be configured to propagate name/photoupdates/changes to the shared space application 206. An individualparticipant indicator can include an indication of a participant statusor state (e.g. present, occupied, not present, etc). A group participantindicator can also include a count of participants in each state (4 or12 present, etc). When a user taps a participant indicator, a liveconnection is established (e.g. audio and/or video depending onavailable device hardware and service features), as described below.

Expressions include any participant created item in a space includingink, images, text, video, live connections, etc. For example, aparticipant can use a tablet pen to draw a picture or write some text.The user can also use a finger and a touchscreen to ink in a space forexample. In an embodiment, an expression can include three states:normal, focus, and magnify, bat is not so limited. In the normalexpression state, new expressions appear on top of old expressions(except for live connections which always appear on top). Previouslykept live connections can be represented by a live connection indicator,such as a live connection icon for example. Text expressions can bescrolled by touching in the text area and dragging up/down. Giving focusto an expression (or group of expressions) in a shared space operates todisplay a marquee around the item.

Table 1 below lists a number of expressions and how each expressionreceives focus.

TABLE 1 Expression Gets focus when tapped from . . . Ink Select ToolImage Select Tool Video Select Tool Audio (music) Select Tool TextSelect Tool Text Tool Live Connection Icon Select Tool Group ofExpressions Select Tool

In the focus state, individual expressions (individual select) or groupof expressions (group select) can have focus. When an expression (orgroup of expressions) has focus, it is temporarily displayed on top ofother expressions, including a surrounding marquee, magnify button, andmove grip. Losing focus returns the expression (or group) to its formerposition in view order. A user can drag the marquee to move (e.g. dragfrom center, or move grip), resize the expression (e.g. drag from edgesand corners), and rotate (e.g. drag move grip or rotation handle).

In one embodiment, any change to an expression (e.g. move, resize,rotate) operates to move the changed expression to the top of vieworder. Changing focus to an expression without making any changes to theexpression operates to return the expression to its former position inview order. The user can clear focus by tapping a blank area of a sharedspace or selecting another expression. Expressions that are pasted to ashared space are automatically given focus.

A user can tap the magnify button which operates to change theexpression view to the magnify state. In the magnify state, theexpression is magnified to encompass a substantial portion of a display(tools remain visible). An expression cannot be moved, resized, orrotated in the magnify state. A user can tap the close button whichoperates to return the expression to the focus state.

Table 2 below lists a number of contextual controls and informationassociated with various expressions.

TABLE 2 Expression Controls Info (Meta-data) Ink Close Timestamp Savecopy in Scrapbook Author (>2 Participants only) Delete Image CloseTimestamp Save copy in Scrapbook Author (>2 Participants only) DeleteSize Crop (Tool) Location (if recorded) Video Close Timestamp Save copyin Scrapbook Author (>2 Participants only) Delete Size Crop Location (ifrecorded) Audio Close Timestamp (Music) Save copy in Scrapbook Author(>2 Participants only) Delete Size Crop Text Close Timestamp(sub-statements Save copy in Scrapbook within Expression) Delete Author(sub-statements within Expression) Live Close Participant(s) ConnectionSave copy in Scrapbook Timestamp Delete Size Play Duration Stop Currentposition in recording Pause Rewind Fast Forward Group of Close AggregateSize Expressions Save copy in Scrapbook Delete

The tools of the shared space application are configured to facilitatethe sharing of photos, video, audio, ink, text, and other userexpressions. The tools can be used to create, select, modify and saveexpressions. In one embodiment, the tools are provided via the spacecanvas component 232 and are configured as a number of buttons (e.g.touchscreen buttons, tablet buttons, icons, etc.). The button typesinclude, but are not limited to: a toolset tray button:expands/collapses toolset tray; a toolset button that selects a tool andthen collapses the toolset tray; a tool button that activates control(for modal buttons) or expands/collapses a palette (for palettes); and apalette button that selects item/mode/choice from a palette and closesthe palette. The appearance of a tool button can change to reflectcurrent palette selection.

Table 3 below lists each toolset, tools, and palettes, under anembodiment.

TABLE 3 Toolset Tool Palette Ink Pen (default) Magnify pen Ink thicknessThickness Palette Ink color Color Palette Stroke Eraser Get stuff from .. . My Pictures (default) My Videos Scrapbook History Text Text(default) Style Style Palette Size Size Palette Color Color Palette FontFont Palette Select Individual select (default) Group select (boundedExpressions) Copy Paste Undo Scrapbook

The shared space application 206 and associated tools allow aparticipant to interact with a space and locate expressions whereverdesired in the space. Moreover, space participants are free to interactwith a space at their convenience. There is no rigid communicationrequirement or protocol (e.g. User 1 communication followed by User 2communication followed by User 3 communication, etc.).

As described above, the shared space application 206 is configured toprovide a live connection between participants of a shared space. In anembodiment a live connection is configured to behave as an expressionwith a few exceptions. A live connection can be used to engage in (andstore) live audio/video conversation (e.g. like a video conference), orto record a message for another participant (e.g. like voicemail orvideomail). In either case, the methods and controls are the same. Whena live connection is opened by tapping a participant icon, the user isprompted to select a type of live connection. The type of liveconnection depends on a type of service subscription.

Table 4 below lists the subscription types for live connections of anembodiment.

TABLE 4 Live Connection Live Connection with Group Subscription Typewith a Participant or multiple Participants Basic Audio Record audio andleave as a Video message in shared space. Record video and leave as amessage in shared space. Premium Audio Combined audio. Video Separatevideo stream for each participant.

The live connection is configured to provide local (“me”) and remote(“you”) views. In a Group live connection, there is a “you” view foreach member of the group. While a live connection is open, a number ofcontrols and information is provided. Duration information is providedto show the duration (e.g. minute:seconds) of a live connection. A mutebutton is provided (for both audio and video) which operates to mute adevice microphone and camera so that others cannot hear or see you. Aclose button, which when tapped, operates to prompt the user to selecteither “Cancel”, “Keep” or “Erase”. Selecting cancel returns to the liveconnection as if the close button had not been tapped. Selecting keepplaces the live connection in the associated space, and is representedby a live connection icon. Selecting erase discards a buffered liveconnection.

The shared space application 206 is also configured to provide ascrapbook using the history/scrapbook manager component 220. Thescrapbook provides a convenient private storage for expressions andspace snapshots. The scrapbook can be opened by tapping a scrapbooktool. The scrapbook is configured to provide multiple views (e.g. list,icon, thumbnail, etc.) and grouping/sorting (e.g. by participant, bydate, by expression type, by location, etc). The scrapbook also includesa search/filter tool for locating expressions and other items in thescrapbook.

Any expression or space snapshot can be stored in the scrapbook. Thescrapbook includes a “Save Space” button which operates to save asnapshot copy of a current space into the scrapbook in image form.Contents of the scrapbook are stored in a folder named “My Scrapbook” inthe operating filesystem. “My Scrapbook” is a peer to “My Pictures”, “MyNotebook”, and “My Music”. The “My Scrapbook” folder can be created whenthe Shared Space application is installed. Expressions in scrapbook havethe same three states (Normal, Focus, Magnify) and all the samerespective controls and behaviors as they do in a space except thefollowing controls are changed/added: Move, Resize, Rotate are notavailable; “Save copy to Scrapbook” is replaced with “Copy to Space”;“Print” button prints an expression or a space snapshot.

The “Get Stuff” toolset is configured to provide a convenient way tobrowse and import items from the operating file system into a space. The“Get Stuff” toolset can be used to browse and import items from variousfolders, such as My Pictures, My Videos and My Music for example.Tapping the “My <Stuff>” tool from the “Get Stuff” toolset opens aviewer to browse the contents of the respective <stuff> folder in theoperating file system. Multiple views are provided (e.g. list, icon,thumbnail, etc) and grouping/sorting (e.g. by Participant, by date, byExpression type, fey location, etc). A search/filter tool is alsoprovided. Expressions have the same three states (Normal, Focus,Magnify) and all the same respective controls and behaviors as they doin a space except the following controls are changed/added: Move,Resize, Rotate are not available; “Save copy to Scrapbook” is replacedwith “Copy to Space.”

The shared space application 206 is also configured to provide a historyusing the history/scrapbook manager component 220. In one embodiment,the history is maintained and accessed from the serving computing device204. The history can be configured as a simple read-only temporal viewof a space. In an embodiment, a space history can be displayed in fullscreen with the following controls: Individual select (default); Groupselect (bounded Expressions); and, Copy, in another embodiment, thehistory can be displayed as a list, thumbnails, etc. The history viewincludes a horizontal scrollbar that can be used to control time (e.g.occupies Tool tray space). Expressions in history have the same threestates (Normal, Focus, Magnify) and all the same respective informationdisplayed, but none of the modification controls. Additionally, “Savecopy to Scrapbook” is replaced with “Copy to Space”.

In an embodiment, the shared space application 206 can be configured toprovide three interfaces for accessing automatically stored strokes,segments, and other expressions. The first is infinite undo and redo.Using undo and redo, a user can access any past state of the segment.Second is the time slider. Using the time slider, a user can specify thetime point directly, or use jump buttons to get to discrete“interesting” time points. Third is a context-based search, which can beimplemented as a behavior. The search behavior allows a user to retrieveprevious strokes, segments, and other expressions based on contextinformation such as time, segment location, segment size, ink colors,etc. The search results are shown as a set of thumbnails on the screen,and a user can access a point in history by clicking on a thumbnail.

FIG. 3 is a block diagram of a shared space architecture 300, under anembodiment. The shared space architecture 300 can be configured as alayered architecture, including a core layer 302. The core layerincludes a service and configuration component 302 a, an event handlingcomponent 302 b, and a display context component 302 c.

A model layer 304 defines the basic interfaces for documents, userinterface, tools, and interaction styles. The model layer 304 includes aspace model component 304 a, a user interface model 304 b, a tool model304 c, an interaction component 304 d, and a physical component 304 e.The model layer 304 includes interfaces and abstract classes that definethe abstractions of shared space components. The model layer 304 can beseparated from the generic layer 306 to ensure extensibility,flexibility, reusability, and interoperability of modules andcomponents.

The space model component 304 a defines the base classes andfunctionality of objects that can he part of a space. The user-interfacemodel 304 b defines an alternative user-interface concept suitable forroomware components. The tool model 304 c provides additionalfunctionality to the space. Prominent examples are toolbars or browsers.Space browsers have a role in providing the connection, between the userinterface and the space. Additionally, the tool model 304 c controls thepossible work modes, like the degree of coupling for example. Thephysical model is the representation of the parts of the “real” worldrelevant to shared space. For example, the term “station” refers to thecomputers running a shared space application. The interaction component304 d supports different styles of interaction, including definingdifferent interaction styles.

A generic layer 306 can provide functionality for interacting andcommunication, such as in team work, meeting, and other situations. Thegeneric layer 306 includes a link and reference component 306 a, adisplay area component 306 b, a toolbars component 306 c, a clickcomponent 306 d, a drag and drop component 306 e, a space component 306f, an interaction component 306 g, a browser component 3061 h, a gesturecomponent 306 i, and a stations component 306 h. The generic layer 306includes standard data types like text, graphics, and informalhandwritten input, as well as private and public workspaces for genericcollaboration support for example.

The instances of hypermedia data model classes are included as part ofthe shared object space. Accordingly, users can access these objectssimultaneously. The generic document elements include workspaces (theequivalent of a page), handwritten input (scribbles), texts, and images.The main elements of the user-interface include segments and overlays.The interaction can be divided into “segments”, which defines the spaceavailable for a tool, such as a document browser for example. Inaddition, “overlays” can be positioned freely. Document browser andtoolbars are provided by the generic layer 306.

For the interaction with components, there are interaction techniquesavailable besides using a mouse and keyboard. These techniques includegestures written with a pen or finger, and support for drag and drop. Togenerate the gesture events mentioned above, each stroke that is drawncan be sent to a gesture recognizer. The shared space architecture 300also includes a foundation layer 308 having a synchronization component308 a, a replication component 308 b, as authentication component 308 c,and a security component 308 d.

FIG. 4 is a flowchart which illustrates a procedure for using a sharedspace application, under an embodiment. As described above, the sharedspace can be shared between two or more users. The shared space can beupdated in accordance with any participant changes when a user is onlineand the respective computing devices are in communication with oneanother. Once a user becomes a participant to a shared space, the usercan interact and communicate in a variety of ways with anotherparticipant or participants of the shared space, as described above.

At 400, the shared space application is installed on the users computingdevice. At 402, the user is prompted to register before using the sharedspace application. Profile information, associated with the user iscollected and can be stored on a serving computing device or locally aspart of the registration process. At 404, after registering, theregistered user can create or join a space to share with otherregistered users. Each space can have a unique name to identify thespace. After creating a space, the space initiator can invite a numberof other users to join the created space. The user can use the contactsrepository (e.g. messenger contacts (“buddies”), OUTLOOK contacts,WINDOWS VISTA contacts, etc. or an aggregation of contacts) to identifypotential users to share the created space. Once the user has invitedanother user to join a space, the shared space application is configuredto send an invitation message to the invitee. The invitee could receivethe invitation message via e-mail, IM, SMS, the shell application on artultra-mobile PC, and/or via the shared space application the next timethe invitee opens the shared space application and is in communication.Each invited user can accept the invitation to create a replicated spacefile locally.

At 406, a shared space is opened and a persistent whiteboard canvas ispresented to the user. If the user is online, any participant changesmade to the canvas are automatically updated and presented to the user.At 408, a participant can use a number of shared space tools to add anexpression, modify an expression, or otherwise interact with the canvasof the shared space. Each online participant sees the interaction byother participants and the updated space canvas. If a user is offline,but comes back online after changes are made by another participant, theparticipant's canvas is then updated to show the changes. Additionally,each participant can save any object in the space to a local scrapbook.In an embodiment, the scrapbook is space independent, but can be usedwith any space. As described above, the shared space application alsotracks and maintains the process of space modification using ahistorical record or history. A participant can use the historicalrecord to recall any step at any time.

As described above, real-time data synchronization (e.g. after aparticipant's interaction, after coming online and opening a sharedspace, etc.) can be provided by the shared space application andassociated components so that all online participants are able to “see”the same persisted space, in the form of a space canvas. Thesynchronization process depends in part on the type of communicationnetwork that the participants are using to communicate. For example, apeer-to-peer communication network uses a different synchronizationprocess as compared to a synchronization process between a number ofparticipant computing devices and a serving computing device. At 410, auser closes a space, and the connection(s) between the user's computingdevice and other participant computing devices are automatically closed.Thereafter, the graphical user interface (GUI) and other utilityresources associated with a space canvas are released.

Referring now to FIGS. 5A-5K, block diagrams illustrate a user interfacefor accessing and interacting with a shared space, under an embodiment.As shown in FIG. 5A, a user interface 500 depicts a number of sharedspaces associated with the current user of the shared space application.The user interface 500 is shown after the user has successfullycompleted an authentication process (e.g. username, password, and otherlogin credentials). The user interface 500 shows that the user has anumber of contacts that are associated with one or more shared spaces.As shown, the user has shared spaces with contacts that include Peter502, Rose 504, Robin 506, and Mary 508. The user interface 500 alsoincludes a block for defining a new space for an associated contact 510.As described above, each contact 502-508 associated with a shared spacecan include a participant picture or other identifying indicia that theuser can use to personalize the spaces.

FIG. 5B is a block diagram of a user interface 500 which illustrates anumber of shared spaces. The connecting lines between the variouscontacts define a number of shared spaces. For example, Robin 506 andTom 512 define a shared space with the user. Jacky 514 defines a sharedspace with the user. Peter 502, Rose 504, Maggie 516, and Frank 518define another shared space with the user. As described above, the usercan use the shared space application to define a number of shared spacesto keep in touch and otherwise interact with select participants.

As shown in FIG. 5B, the user has selected Tom 512 (the “x” highlightsthe user selection) for interaction in a shared space. The user has notselected Robin 506, so the interaction will be solely with Tom 512,until the user invites Robin 506 for this space or opens a differentspace. After selecting Tom 512, the user can use the button 520 to enterthe space. At this point, if Tom is online, a notification is sent toTom 512 to join the associated space. If Tom is offline or does not havehis shared space application open, the notification will be communicatedwhen Tom opens the shared space application and goes online.

FIG. 5C shows the user interface 500 after the user has elected to sharethe space with Tom 512. A status indicator 522 shows that Tom 512 is“online.” As shown in FIG. 5C, the space canvas 524 is blank. That is,neither Tom 512 nor the user has added anything to the space canvas 524.A number of tools 526 are presented to the user for interacting with thespace canvas 524.

FIG. 5D shows the user interface 500 in a state wherein the user canselect from a number of objects (e.g. pictures, videos, audio, etc.) forwhich to include in the shared space with Tom 512. The objects 528-538can be selected from local storage, a peer source, or some onlinesource. As shown in FIG. 5D, the user has selected object 528 to inserton to the space canvas 524. That is, the inserted object 528 is anexpression provided by the user. Tom 512 sees the object 528 on hisspace canvas in real-time since he is online. In one embodiment, theuser can also user a slideshow button 540 to insert a slideshow on tothe space canvas 524. Once the user has selected one more objects, theuser can use the insert button 542 to insert the one or more objects onto the space canvas 524.

FIG. 5E shows the user interface 500 after the user has selected anobject 528 and inserted the object on to the space canvas 524. Once theuser has located the object 528 on the space canvas 524, a number ofadditional context relevant tools 544 are made available to the user forinteracting with the inserted object 528. Additionally, the user can usehandles 546 and 548 to expand/contract and/or rotate the object 528.FIG. 5F shows the user interface 500 after Tom 512 has drawn an inkdrawing 550 onto the space canvas 524. The user was able to see the inkdrawing 550 at each stage of its creation by Tom 512. FIG. 5G shows theuser interface 500 after Tom 512 has inserted an object 552 on to thespace canvas 524. Tom has also typed in some text 554 below his insertedobject 552. As described above, the user and Tom 512 are seeing the sameinteraction and information on their respective displays, such as atouchscreen interactive display for example.

As described above, the shared space application allows each participantto freely interact with a shared space. FIG. 5H shows the user interface500 after the user has moved Tom's inserted object 552 to a new locationon the space canvas 524. The ink 550 is now partially covered by therelocated object 552. FIG. 5I shows the user interface 500 after Tom 512has inked 556 a question asking why the user moved the object 552.

FIG. 5J shows the user interface 500 in a scrapbook view 558. The userhas saved a number of items 560-568 to the scrapbook. In one embodiment,the content(s) of the scrapbook is saved locally to the user's computingdevice. The user interface 500 also includes a button 570 that the usercan click on to go to the history view. FIG. 5K shows the user interface500 in a history view 559. The history includes a number of historydetails 572-582 that have been recorded by the shared space applicationand represent participant changes and interaction with the space andspace canvas 524. The user can also use the user interface 500 to mark atime in history for saving in addition to the automatic saves. In oneembodiment, the history is saved to a serving computing device and madeavailable to a user when connected and online.

As described above, in an embodiment, a shared space application can beincluded or installed on a computing device and be associated with aserving computer for managing aspect of a shared space. For example, theshared space application can be installed on an ultra-mobile personalcomputer. The portability of the ultra-mobile PC enables users to usethe shared space application in an immediate, convenient, and readilyaccessible manner. A shared space application can be configured toprovide a shared space to allow a number of users to communicated andinteract with one another. A space can always be made available to allparticipants of the space, regardless of whether there is a networkconnection. That is, a participant is free to interact with the spaceonce a space is created, even when the participant is not currentlyconnected or online. Any changes are updated to other participant spaceswhen the participant is connected and/or goes online.

Moreover, the shared space application enables any space participant toadd, modify, create, etc. an expression at any time without requiringother participants to join a session. Accordingly, the shared spaceapplication allows a degree of freedom, allowing all participants toexpress themselves whenever they choose. Likewise, the shared spaceapplication allows expression recipients the freedom to respond wheneverthey choose. There is no direct or implied obligation to respondimmediately.

The shared space application can provide a persistent canvas wherein allparticipant expressions are visible on a single display. For example, adisplay of an ultra-mobile personal computing device can be used todisplay a shared space, wherein user expressions can be persisted withinthe display. A user does not have to scroll forward and back to finddesired information since the expressions are contained within a visiblearea of the space canvas and display (including hidden expressions). Theshared space is configured to be substantially visually identical forall participants who are online and have the space open.

Additionally, the shared space application is configured to enable allparticipants to see edits and other modification to a shared space inreal-time or substantially in real-time (e.g. depending on connectivity,bandwidth, and other factors). A user can use a pen or finger to drawany handwritten stroke any where in the space by dragging the pen orfinger on the space canvas (termed “stroking”). A user can erase bydrawing a scribbling stroke with the stylus's modifier button down(termed “metastroking”) or a finger. The shared space application isconfigured to allow all of the participants see the editing process asit occurs. For example, the participants, can see the characters as theyare typed (e.g. you see corrections), ink as its drawn (and erased),etc. Thus, the shared space application creates a sense of presence thatis lacking in many other applications.

As described herein, a shared space provides a mechanism for users tokeep in touch using emotionally expressive and/or passivecommunications, but is not so limited. As business relationships,families, and friendships spread over greater distances, the sharedspace provides a convenient way to communicate without being a hassleand obtrusive. For example, consider a family, wherein the familymembers reside in different parts of the country. The entire family cancommunicate and participate with one another by using a shared space.Siblings can post photos of significant life events, or just commondaily occurrences. Other family members can also use the shared space tocomment on the photos, ash for advice, and/or share ideas. Theinteraction flows naturally as annotations, drawings, personal notes,video, and/or audio clips are added by the various participants.Whenever multiple participants happen to be viewing a shared space, theycan also serendipitously engage in a live conversation.

As another example, consider a business made up of multiple businessunits that rely on one another to provide important services toconsumers. The business units are located in different parts of theworld. Rather than using unreliable e-mail or telephone communication,each employee of the business has a shared space application running onan ultra-mobile personal computing device. The employee canstrategically set-up and monitor one or more shared spaces betweenimportant counterparts of the business. For example, a product group canset up a shared space for communicating with strategic business plannersfor the launch of a new device. The interaction flows naturally asannotations, inking, drawings, images, personal notes, video, and/oraudio clips are added by the various participants. Users can also usethe shared space application to engage in live audio and/or videoconversation if the parties happen to be available at the same time.

Exemplary Operating Environment

Referring now to FIG. 6, the following discussion is intended to providea brief, general description of a suitable computing environment inwhich embodiments of the invention may be implemented. While theinvention will be described in the general context of program modulesthat execute in conjunction with program modules that run on anoperating system on a personal computer, those skilled in the art willrecognize that the invention may also be implemented in combination withother types of computer systems and program modules.

Generally, program modules include routines, programs, components, datastructures, and other types of structures that perform particular tasksor implement particular abstract data types. Moreover, those skilled inthe art will appreciate that the invention may be practiced with othercomputer system configurations, including hand-held devices,multiprocessor systems, microprocessor-based or programmable consumerelectronics, minicomputers, mainframe computers, and the like. Theinvention may also be practiced in distributed computing environmentswhere tasks are performed by remote processing devices that are linkedthrough a communications network. In a distributed computingenvironment, program modules may be located in both local and remotememory storage devices.

Referring now to FIG. 6, an illustrative operating environment forembodiments of the invention will be described. As shown in FIG. 6,computer 2 comprises a general purpose desktop, laptop, handheld, orother type of computer capable of executing one or more applicationprograms. The computer 2 includes at least one central processing unit 8(“CPU”), a system memory 12, including a random access memory 18 (“RAM”)and a read-only memory (“ROM”) 20, and a system bus 10 that couples thememory to the CPU 8. A basis input/output system containing the basicroutines that help to transfer information between elements within thecomputer, such as during startup, is stored in the ROM 20. The computer2 further includes a mass storage device 14 for storing an operatingsystem 32, application programs, and other program modules.

The mass storage device 14 is connected to the CPU 8 through a massstorage controller (not shown) connected to the bus 10. The mass storagedevice 14 and its associated computer-readable media providenon-volatile storage for the computer 2. Although the description ofcomputer-readable media contained herein refers to a mass storagedevice, such as a hard disk or CD-ROM drive, it should be appreciated bythose skilled in the art that computer-readable media can be anyavailable media that can be accessed or utilized by the computer 2.

By way of example, and not limitation, computer-readable media maycomprise computer storage media and communication media. Computerstorage media includes volatile and non-volatile, removable andnon-removable media implemented in any method or technology for storageof information such as computer-readable instructions, data structures,program modules or other data. Computer storage media includes, but isnot limited to, RAM, ROM, EPROM, EEPROM, flash memory or other solidstate memory technology, CD-ROM, digital versatile disks (“DVD”), orother optical storage, magnetic cassettes, magnetic tape, magnetic diskstorage or other magnetic storage devices, or any other medium which canbe used to store the desired information and which can be accessed bythe computer 2.

According to various embodiments of the invention, the computer 2 mayoperate in a networked environment using logical connections to remotecomputers through a network 4, such as a local network, the Internet,etc. for example. The computer 2 may connect to the network 4 through anetwork interface unit 16 connected to the bus 10. It should beappreciated that the network interface unit 16 may also be utilized toconnect to other types of networks and remote computing systems. Thecomputer 2 may also include an input/output controller 22 for receivingand processing input from a number of input types, including a keyboard,mouse, pen, finger and/or other means. Similarly, an input/outputcontroller 22 may provide output to a display, a printer, or other typeof output device. Additionally, a touch screen can server as an inputand an output mechanism.

As mentioned briefly above, a number of program modules and data filesmay be stored in the mass storage device 14 and RAM 18 of the computer2, including an operating system 32 suitable for controlling theoperation of a networked personal computer, such as the WINDOWS XPoperating system from MICROSOFT CORPORATION of Redmond, Wash. The massstorage device 14 and RAM 18 may also store one or more program modules.In particular, the mass storage device 14 and the RAM 18 may storeapplication programs, such as a word processing application 28, animaging application 30, e-mail application 34, drawing application, etc.

It should be appreciated that various embodiments of the presentinvention can be implemented (1) as a sequence of computer implementedacts or program modules running on a computing system and/or (2) asinterconnected machine logic circuits or circuit modules within thecomputing system. The implementation is a matter of choice dependent onthe performance requirements of the computing system implementing theinvention. Accordingly, logical operations including related algorithmscan be referred to variously as operations, structural devices, acts ormodules. It will be recognized by one skilled in the art that theseoperations, structural devices, acts and modules may be implemented insoftware, firmware, special purpose digital logic, and any combinationthereof without deviating from the spirit and scope of the presentinvention as recited within the claims set forth herein.

Although the invention has been described in connection with variousexemplary embodiments, those of ordinary skill in the art willunderstand that many modifications can be made thereto within the scopeof the claims that follow. Accordingly, it is not intended that thescope of the invention in any way be limited by the above description,but instead be determined entirely by reference to the claims thatfollow.

We claim:
 1. A system comprising: a space canvas to display a number ofexpressions; a number of tools to interact with a shared space that isshared by a number of associated users, wherein the number of toolsprovide functionality to include an expression including ink, text, andother user expressions on the space canvas, wherein the number of toolsare used to add and modify expressions within the space canvas as partof offline and online user interactions with the shared space; and anupdate component to automatically update the space canvas with changesmade to the space canvas including using an aggregate of offline changesmade by associated users to update the space canvas with the offlinechanges including previous ink strokes, segments, and any otherexpressions based part in on contextual information including time,segment, and ink parameters.
 2. The system of claim 1, the updatecomponent further to update the space canvas based in part on use of oneof the number of tools to interact with the space canvas usinghandwritten, video, and audio expressions, wherein a handwrittenexpression includes digital ink strokes.
 3. The system of claim 1, theupdate component further to expose participant expressions to eachcommunicating participant.
 4. The system of claim 3, the updatecomponent further to synchronize the participant expressions with sharedspace data of each online participant.
 5. The system of claim 3including a master file to update the shared space with the participantexpressions.
 6. The system of claim 1 including a scrapbook component tostore select ones of the participant expressions.
 7. The system of claim1 including a history of the shared space for retrieving previous inkstrokes, segments, and other expressions based in part on contextinformation including segment location, segment size, and the inkparameters.
 8. The system of claim 1, wherein the number of tools can beused to create, modify, and save one or more expressions to the spacecanvas and to retrieve previous inking strokes, segments, and otherexpressions based in part on associated context information.
 9. Thesystem of claim 1, wherein the number of tools include a toolset traybutton, a toolset button, a tool button, and a palette button.
 10. Thesystem of claim 1, wherein the space canvas can receive input from oneof a stylus, keyboard, and a finger.
 11. The system of claim 1configured to establish a live connection with other participants aspart of using the shared space.
 12. The system of claim 1, the updatecomponent further to expose expressions made by remote participants. 13.The system of claim 1, wherein the number of tools include magnificationand focusing functionality.
 14. The system of claim 1, wherein theshared space can be used by various participants to communicateinformation to one another using the space canvas.
 15. A computingdevice comprising: a shared space that includes a canvas to display userexpressions including changes made to the canvas based in part on anaggregate of offline changes to update the canvas with ink strokes,segments, and other expressions based in part on time, segment, and inkparameters; and, interactive tools used to include ink, text, and otheruser expressions on the canvas as part of offline and onlineinteractions with the shared space.
 16. The device of claim 15, whereinthe shared space is updated with participant expressions that includeinking, text, and other digital expressions as part of asynchronization.
 17. The device of claim 15 comprising adding ink andother digital expressions to the canvas using an interactive tool.
 18. Amethod comprising: providing a shared space that includes a space canvasto display expressions including changes made to the canvas using anaggregate of changes to update the canvas including previous inkstrokes, segments, and other expressions; and, updating the shared spacebased in part on operations using interactive tools to include ink,text, and other expressions on the space canvas as part of offline andonline interactions with the shared space.
 19. The method of claim 18comprising providing the space canvas as a persistent whiteboard canvas.20. The method of claim 18 comprising updating the space canvas withremote participant expressions.